In game mode: Hit SHIFT+CTRL+C
to have the cheat box open.
In order to have cheats working, you have to enter "testingcheatsenabled true"
after that, add whatever cheats you want into the game!

Money Cheats

Motherlode - Gives $50,000
Kaching - Gives $1,000
freeRealEstate - buy a house for free
Rallom - Gives $200,000,000,000 To Active household


After enabling the "testingCheatsenabled true" code, you can also hold [Shift] and click on the following objects to access new options:

Mailbox

"Make All Happy"
"Make Friends For Me"
"Make Needs Static" or "Make Needs Dynamic"
"Make Me Know Everyone"
"Force Visitor"
Various "Force NPC" options
Various "Set Career" options

Work place

"Force Opportunity"
"Force Event"
"Force All Events"

Ground

"Teleport"

Any Sim

"Trigger Age Transition"
"Modify Traits"

Active Sim
"Modify Traits for Active Sim"

Non-household Sim

"Add to Household"


Baby Tips

If you want a baby girl, eating 3 watermelons while pregnant will increase your chances & if you want a baby boy, eating 3 apples will also increase your chances. Reading pregnancy books from the bookstore will help in having a happy baby.
Forcetwins - Twins
Have fertility treatment, while pregnant listen to kids song and read a pregnancy book - Triplets